Prevalence of Gastrointestinal Parasites in Sheep in Selected Markets in Lokoja, Kogi State, Nigeria

Abstract

 Gastrointestinal parasitic infections is a major challenge to sheep production in Nigeria. This study investigated the prevalence and intensity of gastrointestinal parasites in sheep marketed within Lokoja, Kogi State, Nigeria. A total of 100 sheep were randomly sampled from four major markets, namely Ganaja, Felele, Old Market, and New Market. Fresh fecal samples were collected and examined using standard formol-ether concentration and sedimentation techniques, followed by microscopic identification of parasite eggs, oocysts, and larvae. The overall prevalence of gastrointestinal parasitic infection was 66.0%. Seven parasite species were identified, and these were Eimeria spp., Strongyloides papillosus, Trichostrongylus spp., Haemonchus contortus, Moniezia spp., Trichuris ovis, and Paramphistomum spp. Parasite intensity were high for Eimeria spp., Trichostrongylus spp., and Strongyloides papillosus, but moderate for Haemonchus contortus, and lowest for Moniezia spp. and Trichuris ovis. Pearson’s Chi square analysis revealed a significant association between infection prevalence and gender, with male sheep showing a higher prevalence than females (p = 0.004). No significant statistical associations were observed between infection rate and breed, age category, or sampling location (p > 0.05). The findings confirm that gastrointestinal parasitism remains widespread among sheep in Lokoja, with mixed infections commonly occurring and capable of impairing productivity. The study underscores the need for improved parasite surveillance and appropriate control measures to enhance sheep health and productivity.